Road oiler



April 22, 1930. w. T. THOMPSON 1,755,376

- ROAD OILER .Filed June 16, 1923 4 Sheets-Sheet 2 April 22, 1930. w. T.THOMPSON 1,755,376

ROAD 01mm Filed June is, 1923 4 Sheets-Sheet 4 I W050i? 20777706077 wfiwirramvsy Patented Apr. 22, 1930 UNITED? STATES AT NT oFFi-cE WATSON 'r.THOMPSON, oF'KnNNnrr SQUARE, PENNSYLVANIA, ASSIGNOR r0 AMERI- CAN 3on1)MACHINERY COMPANY, me, or KnNNnrr saunas, PENNSYLVANIA,

A CORPORATION OF DELAWARE Application filed .Tune 16,

- My invention relates to mechanism for containing, transporting anddistributing oil or asphaltum and like products to road surfaces.

At the present time there are widely used Various devices fordistributing oil or asphaltum to road surfaces, in the construction ofhighways and other roads and in their maintenance and repair, as well asfor more or less permanently laying surface dust during the dry summerseasons.

The various devices heretofore in use have proved substantiallysatisfactory, but are open to a number of serious objections which cutdown their efficiency and add tothe cost of distribution. Such machines.are'more especially inefiicient when handling the heavier road oils'asTarvia for example, since it is difficult to bring the supply ofmaterial up to and maintain, it at the proper temperature and difficultyis met with in maintaining clean the various conduits, valves, thedistributor etc. A further disadvantage of the types of machines now inuse is'that they require motive power, in the form, for example, of amotor chassis, which is devoted solely to their use, since removal andattachment of the various devices constituting the oiler is aconsiderable task, requiring a good deal of time and skilled workmen.

In accordance with my invention, I'p'rovi'de a road oiler as a unit,apart from the necessary motive power, which may be readily mounted onor dismounted from an ordinary truck chassis, in a minimum of time andwith comparatively unskilled labor.

Further, I provide a road oiler in which the supply of material fordistribution may be quickly brought up to and maintained at a uniformtemperature, irrespective of the viscosity of the material, so that whendistribution is interrupted no time is lost because of cooling of thematerial.

Further, I provide a road oiler in which all theconduits, valves, thedistributor, etc, may be quickly and conveniently cleaned without thenecessity for uncoupling any :of the piping or otherwisedismounting themachine.

Having now indicated, in a general way,the

' ROAD 'OILEB,

1923. Serial No. 645,719.

'in which' Fig. 1 is a side elevation of a road oiler un t embodylng mylnvention, mounted on a motor truck.

Fig.2 is a rear view of the unit shown in Fig. 1, apart fromthemotortruck.

Fig. 3 is a view of the unit showing details of construction.

Fig. 4 is a side elevation of the rear portion of a unit embodying myinvention partially broken away to show pipe connections. 7 Fig. 5 is adetail View showing a pump and pipe connections, 7 1

Fig. 6 is adiagrammatic illustration of the circulating system of theoiler.

a indicates a frame, upon which the unit is mounted, adapted to restonand be secured to the chassis of a motortruck, of the requiredcapacity to carry the unitand supply of material to be distributed.

6 indicates a casing, preferably lined with asbestos or other convenientinsulating material, secured to the frame and enclosing the variouselements composing the unit. The casing is provided with stacks 0 0 andventilating apertures cl to permit ofcirculation of air within thecasing.

Within the casing Z) and supported by the frame a is a tank 6, adaptedto carry material to be distributed, provided at thetop with a fillerhole and cover 7", which extends through the casing, and provided in itsbottom with an aperture for the reception of a pipe 9. r The apertureand consequently the flow of material from the tank is controlled bymeans of an internal valve it, carried by a pivoted lever 2' andoperated manually,

from the top of the casing, through the medium of a rod 7', Supported bytheframe a and positioned beneath the tank e is a burner 16 of a type,for example, as that illustrated in an application for patent filed byme Feb. 26, 1923, Serial No. 621,177, but adapted to heat and maintainheated the contents of the tank. The burner is supplied with fuel,through a fuel pipe Z, valved as at manifold 0, provided with valves12,10, and

from which extend downwardly, backwardly and downwardly pipes g, 9connected to an apertured distributor formed by two sections of pipe 1",r connected at their abutting ends as at 8.

Supported by the frame adjacent the rear end of the tank 6 is a pump itadapted to be driven by means of a chain a from a shaft 4; suitablydriven from the truck motor, as, for example, through a take-01f fromthe truck transmission. r

A tank w, adapted to contain a cleaning f fluid, is supported on thecasing b and provided with an outlet pipe as having a shut-off valve VThe pipe g'leading from the bottom of the tank is connected to the pumpthroughpiping .2, connection with which is made through a valve 2. Thepipe 00 leading from the cleaning fluid tank w is connected with thepiping a through a valve 14. By manipulation of the valves 2 and 14, thepump may be made to draw material from either the main tank or fromthecleaning fluid tank, A strainer pot 3 for connection with a source ofsupply of material is connected with pipe 2 through a valve 4.

The discharge of the pump is connected to a pipe 5 which connects with aheader 6. At one end, the header is reduced for the reception of, apatching hose and provided with a valve 7. Adjacent its other end, theheader is connected to the manifold 0 of the distributor, between valves0, p, by means of a pipe 8, valved as at 9. Piping 10 connects theheader with the top of the, main tank and is provided with a valve 11. V

A by-pass 12, provided with a safety valve 13, connects header 6 withpiping 10 around valve 11.

A connection 15, in which is interposed a valve 15, joins the header 6with the line as leading from the tank to containing the clean ingfluid.

The operation of the device will, it is believed, be clear from theabove description of the component parts and arrangement thereof takenwith the following:

Assuming that the apparatushas not been used and all the valves shut offWhen it is desired to put the apparatus in operation, the burner fueltank 7 is first filled with kerosene oil through the filler hole at thetop and the truck may then be run to the. location of the source ofsupply of material to be distributed and from which the main tank 6 isfilled, which may be, for example, fixed tanks or a tank car.

The main tank 6 may be filled through the opening in its top, afterraising cover f, by gravity or outside pump, or the pump t, forming apart of the apparatus, may be used to draw material from the supply andforce it into the tank. -Where the pump 2? is used, a suitable hose isconnected to the strainer pot?) and led to the source of supply. Thevalve 4 is opened, giving access to the suction side of the pump, andthe valve 11 is opened, giving a passage from the pump discharge tothetank. Thepump is then started'and material drawn from the supply isdischarged into the tank; hen the tank is full, valves 4 and 11 are shutofl.

vThe tank having been filled, for example,

with material required to bekept hot in.

order to have the necessary fluidity for proper distribution, theburners beneath the tank 6 are lighted, after opening valve m in pipe Zleading from fuel'tank 11.. Since a considerable quantity of' material,usually of a rather heavy bituminous character, is con tained in thetank,there is provided means for circulating the material in order toinsure uniform and complete heating.

The burners having been started, the valve it within the tank'is openedthrough rod j. Valve 2 is opened to permit pump 6 to draw material fromthe tank, and valve 11 is opened permitting the pump to discharge intothe tank after which the pump is started and the material in the tankcirculated While the truck proceeds from the source of supply to thepoint of distribution.

On reaching the point of distribution and itbeing desired to distributethe contents of the tank on, for example, a road surface, the sections9", 1" are abutted and secured together by means of hook s, valve llisclosed and valves 79 and p are opened. When it is desired thatdistribution shall commence valve 9 is opened and pump tstarted. It willbe noted that by virtue of the provision of valves p, 39 either side ofthe distributor may be uesd alone one side or the other being shut offby means of either valve 29 or valve 10. It will be further noted thatshould the entire capacity of the pump, developed at convenient truckspeed, benot needed, the valve 11 1 may be more or less opened to permitthe by pass of material back into the tank.

Assumin that the material in tank 6 has all been dlstributed, there isprovided in tank to a cleaning fluid which may be drawn into the pumpand discharged through the piping and distributor while they are hot forthe purpose of cleaning out the heavy material before it has a chance tocool and clog up the piping.

When distribution is completed, all valves should be closed and valves 3and 14 in pipe at, leading from cleaning fluid tank '10, and

valve 15 opened. When the pump is then operated and cleaning fluid willpass into and through the pump and piping directlybeneath the tank,returning from the header 6 to the intake side of the pump throughconnection After the cleaning fluid is so circulated, valves 9, p and pare opened and cleaning fluid discharged through the nozzles in themanifold pipes.

After the manifold is cleaned out as above c and While all piping ishot, the distributing 1O tank being empty valve y should be closed andvalves a, 2, 9, 11, 7, p, p, 15, and valve It should be opened to permitall bituminous material to drain from the pipes.

Should the condition arise Where material 11 is left in the tank after arequired surface is covered or at the end of a Working day, suchmaterial may be removed from the tank before cooling is permitted andfor this purpose there is provided a valve 7 to which 26 a hose may beattached through Which the material in the tank may be discharged by thepump When valves 2 and 7 are opened.

Valve 7 may also be utilized for attaching a patching hose through whichmaterial may be discharged for distribution by hand to portions of aroad surface not reached or properly covered by the distributor.

In order that the apparatus shall not be damaged if through error thepump is start- 30 ed With the discharge valves closed, there is providedthe by-pass 12 in Which is placed a safety valve 13, so adjusted as notto interfere With normal operation of the pump in circulating materialor discharging it, but

adapted to relieve the pump if its discharge is not open.

Having now fully described my invention, What I claim and desire toprotect by Letters Patent is v A road oiler having a tank for the oil, a

pump having an inlet and an outlet, a connection from the bottom of thetank to the pump inlet, a header connected to the pump outlet, adistributor for the oil, a connection between the distributor and theheader, a connection between the header and the tank, a conduit leadingfrom said header back to the pump inlet, a valve in each connectionwhereby the flow through said connections :30 may be controlled Withoutaffecting the flow passage through other connections, and means fordelivering cleansing fluid to the pump inlet. 7

In testimony of Which invention, I have hereunto set my hand, at KennettSquare, Pa, on this 13th day of June, 1923.

WATSON T. THOMPSON.

